c. dark corn syrup

Dark corn syrup is a viscous sweetener produced by partially hydrolyzing cornstarch and adding coloring and flavoring agents, typically refiners' syrup or molasses. Originating in the United States in the 19th century, it is chemically distinct from light corn syrup in that it contains added caramel color and molasses, which impart a deeper brown hue and more complex, slightly molasses-like flavor with subtle notes of caramel and toffee. The syrup maintains the same glucose and fructose composition as light corn syrup but gains additional depth and richness from the molasses component, resulting in a more pronounced flavor profile suitable for applications where darker color and enhanced taste are desirable.

Dark corn syrup is chemically a mixture of glucose and fructose syrups with water and added ingredients; it does not crystallize easily, making it valuable in candy-making and baking applications. Unlike light corn syrup, which is nearly flavorless and clear, dark corn syrup's molasses content provides distinct flavor characteristics that distinguish it in recipes.

Dark corn syrup is widely used in American baking and candy-making, where its non-crystallizing properties and flavor contribute to traditional desserts such as pecan pie, brown Betty, and certain brittle candies. In candy manufacturing, it prevents crystallization and adds body to fondants, caramels, and fudges. The syrup's molasses notes make it suitable for glazes and sauces, particularly in barbecue applications and Southern-style cooking, where it adds depth and color to marinades and toppings. Home bakers employ it in cookies, brownies, and cakes where its slight molasses undertones enhance richness without overpowering other flavors. It can be substituted for light corn syrup in many recipes, though the stronger flavor and darker color should be considered when the recipe's final appearance and taste are critical.